1167790006778 has 8 divisors (see below), whose sum is σ = 1751692696020. Its totient is φ = 583892441440.

The previous prime is 1167790006771. The next prime is 1167790006843. The reversal of 1167790006778 is 8776000977611.

It can be written as a sum of positive squares in 2 ways, for example, as 1124060087089 + 43729919689 = 1060217^2 + 209117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1167790006778² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1167790006771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648803 + ... + 1660278.

Almost surely, 2^{1167790006778} is an apocalyptic number.

1167790006778 is a deficient number, since it is larger than the sum of its proper divisors (583902689242).

1167790006778 is a wasteful number, since it uses less digits than its factorization.

1167790006778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561952.

The product of its (nonzero) digits is 6223392, while the sum is 59.

The spelling of 1167790006778 in words is "one trillion, one hundred sixty-seven billion, seven hundred ninety million, six thousand, seven hundred seventy-eight".